Oil-pumping apparatus



Jan. 14, 1930. I c ENGSTRAND 1,743,762

OIL PUMPING APPARATUS Filed Feb. 18, 1927 Mr/vwxs. INVENTOR.

- Patented Jan. 14,1930

UNITED A srATas GUNNAR C. ENGS'IRAND, OF BROOKLYN, YORK, ASSIONOR SALVAGE:PROCESS CORPORATION, OF NEW YORK, N. Y., A CORPORATION 01 NEW YORK OIL-PUMPING arrana'rus Application filed February 18, 1927." Serial No. 169304.

My invention relates to an apparatus and The steam ejectors 8 comprise in combination a socket part 10into whichfthe nozzle part 12 is screwed. These parts are so construeted that they together form an annular method for the pumping of heavy viscous oils and material and is especially adapted for the cleaning of double bottoms of maritime vessels.

It has for its object to provide an open suction line into which a plurality of separate feed lines enter.

It has also for its object to provide the feed lines with adjustable steam ejectors at the entrance into the open suction line.

It has also for its object to provide substantially horizonal feed lines into which air is admitted at the intake end in suflicient 15 quantities to cause a wave transmission in the horizontal lines.

In the drawings Figure 1 shows the general arrangement for the pumping of the double bottom of a maritime vessel.

Figure 2 shows the detail construction of the lower part of the transmission line with one feed line attached and illustrates in a diagrammatic manner the wave transmission of the material through the feed line.

Figure 3 shows the detail of construction of the steam ejectors and the air intake of the main transmission line.

In the drawing where like reference characters designate identical parts, 1 represents the maritime vessel from which the viscous material is withdrawn. At the side of the vessel the barge 2 is moored, on the deck of which the vacuum pump 3 is mounted. The

suction from the vacuum pump is connected to the collector tank 4 into which the main suction line 5 discharges.

The hose 5 is shown slung over the ship side and is at its inboard end provided with a Y connection 11 to which the horizontal feed lines 6 are connected by means of the adjust-, able steam ejectors 8. V

The Y connection is also provided with an open intake through which the atmospheric air is allowed to enter.

nozzle through which the steam from the steam line 7 .wil1 enter into the transmission.

The operation is as follows y p The vacuum pump, having been strated, takesout the air from the collector tankand free atmospheric air will rush in through the openline 5 to make up the deficiency in the tank 4. j j

It is to' be noted that the. open line 5 prevents ahigh vacuum in the. collector tank. and the volume of air rushing in through they intake 9 is several times the volume of air that rushes. in through the air openings in an apparatus as per the U. S..Patent No. 1,405,173.

PATENT JOIFFICMEE It is also to be noted that the air entrance through the open inlet 9 is-not accompanied by a temperature reduction as is the case of the pumping rig shown in the U. S. Patent No. 1,480,482 where the air expandsinto a line where a high vacuum is maintained.

The carrying capacity of an air stream is in direct proportion to the density of the air and also to the square of the velocity. Therefore it is of the utmost importance ,to maintain a high velocity as well as density inside 76 With an opensuction linev into which the" i the transmission line.

material is fed by independent feed lines several times :more of material can be trans particular material to be no vention.

The vacuum required for the transmission throu h the short feed lines is relatively low and t e material is readilysucked up into the suction line b the relatively low vacuum which the steam e'ts 8 are able to create.

In this connection it is to be noted that the jet nozzle is sharpl inclined towards the axis of the transmisslon line. The steam will therefore emit in shape of a conical sheet which entirely shuts off the entire hose line.

I have noticed that if the steam emits from nozzles parallel with the transmission line the created vacuum is slight as the air tends to pass back around the ets.

Also, by placin the steamjet's where the feed lines enter t e main suction line the pumped material will be blown into in ments which are readily carried by the a r stream to the collector tank.

The transmission through the horizontal feed line is illustrated in Flgure 2. The material is sucked u into the horizontal hose line which will a ways remain'pa'rtly filled during umpin The air which passes over the sur ace of t 1e liquid material will cause waves inside the hose which waves are blown into fragments into the main suction line by the steam jets, all as shown in Figure 2.

I do not wish to be understood as limiting myself to the specificdetails of construction as it is manifest thatvariations and modifications, may be made in the adaptation of the device to various conditions without departing I claim V 1. In a transmission line, suction producing means connected thereto, feed'lines connected to the transmission line, an air inlet in the transmission line substantially at the union of the feed lines and the transmission line, andannular steamjets near said inlet compnsmga-socket part into which a male from the spirit and scope of my in-' interposed between said feed line and said suction line to dischar 0 into said suction line near the open end t ereof.

4. In a device of the character described, a suction line having an end 0 en to the atmosphere, a plurality of feed lines connected thereto and steam jets interposed between said feed lines and said suction line to discharge into said suction line near the open end thereof, said jets opening .into said suction line at an oblique angle to said line.

GUNN AR O. ENGSTRAND.

nozzle part is screwed, the two parts forming a conical nozzle so directed that the steam i'ets will effectively shut off the transmission ine below said air inlet. 1

2. The methodof transferring viscous material through a conduit from a lower to a higher level, comprising'creating a suction in said conduit and freely a'dmittin air to said conduit at a. point spaced from t e' inlet end thereof to create a high velocity air stream in said conduit between said point and the discharge end-ofsaid conduit, creating waves of viscous material inside the remainder of said conduit by means independent of said suction producing means, and discharging said waves into the portion of the conduit having the high velocity air stream so as to blow said waves into fragments in sald-air stream.

3. In a device of the character described, a

suction line having an open end, asubstantially horizontal feed line and a steam jet 

